David weimer



D. WEIMER. GRINDING MILL.

- No. 95,396. Patented Sept. 28, 1869.

',L g mull: |||||n| g .To all 'it may concern: 1 Be it known that}, DAVID Wnmnn, of Gettysburg,

waited fitstefi 1a strut dtjijiirn.

DAVID,;WE I M ER, or GETTYSBURG, OH'IO.

Letters PatntNa-Mfiflli, September 28, 1869.

mnovmmm: m Gamma-mas The Bohldnie rofemd 'todn that Letter-i Patent and making part 'of the same.

in the county of Darke, hr the State of Ohio, have invented an Improvement in Fleming-Mills; and I do .hereby declarethat the following-is a full and exact description thereof, reference being had to the accom pauying drawings, and to the letters of reference marked thereon."

The nature of my invention consists in carrying the spindle-shaft by means of springs attached tothe shaft, and connected with 'hespindle-pinion, the pinion movin freely about. the! shaft, and resting on a collaroi' t e same, and the maunerof adjusting the springs.

. To enable 0t ers skilled in the art to make and use tion and operation. j The figure-represeutsa side elevation of the machine. I

The drawing shows clearly all the novel features of the invention.

A represents a quadrangular 'frame, and L, part corresponding with the mill-floor.

my invention, 1 will proceed to describe its construc- B, burr-stone, suspended on the spindle-shaftin the usual manner.

- which are secured within slots'of'the head, and the lower. ends of which rest within the spaces between the arms of thepiniim.

I These springsI rip through, thus making several leaves, and thereby adding to their flexibility.

To adjust these springs, to obtain the requiredresistanee, I use bands F and blocks G, they being socured to the springs by screws within these bands.

The adjustment is effected by moving the bands up and down on the springs.

. Metallic springs maybe substituted for the wooden ones, and arranged-similarly. The object sought is to' prevent backlash, or the cogs striking back and torward as the speed or power required changes.

The power is communicated to the spindle through thesprings, instead of directly through the pinion,-

permanently keyed to the spindle, as is the usual manner; v

This construction also prevents the driver striking forciblythe bail of the burr, and thereby prevents its wearing rapidly.

Experience has shown, that in this construction, the;

cogs never leave the driving-sardines, only when the power is suddenly shut entirely off, and then the springs prevent any jar as a consequence; and that much of the jar, friction, and battering of the cogs is dispensed with and that the grinding is more uniform, thereby producing more and a better quality of flour.

What I claimas myinvention, and desire to secure by Letters Patent, is-

1. The springs E, and their arrangement, with reference to the spring-head 1), spindle O, and pinion H,

substantially as .and for the purpose described.

2. The spring-adjusting device, composed of the band F, block G, and arranged, in connection with the spring .13 substmitiall v as-and for the purpose described.

DAVIDWEIMER.

'Witnesses:

JOHNCLABK, G. W. Houses.- 

